Biology CHEMICAL CO-ORDINATION AND INTEGRATION

Goiter

Endemic or simple goitre or colloid goitre : It occurs due to deficiency of iodine in drinking water. It is non-genetic (sporadic goitre is a genetic disease). It is characterized by enlargement of thyroid gland due to increase in number and size of acinal cells of thyroid gland. It is more common in people of hilly region. To prevent goitre, the table salt is being iodised these days.

 
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